Anatomy- U2- Integumentary System

Layers of this skin

epidermis, dermis, hypodermis, organs

5 layers of epidermis

corneum

lucidum

granulosum

spinosum

basale

Epidermal layer that is constantly shedding off

corneum

The oldest cells in the epidermis are found in what layer?

corneum

Which layer of the epidermis is only found on the palms and soles of feet?

lucidum

Where does mitosis or cell division of the skin take place?

basale

Two regions of the dermis

papillary and reticular

What part of the dermis creates your fingerprints?

dermal papillae

What is the hypodermis made of?

adipose tissue

What part of the skin stores fat?

hypodermis

The tough protein found in skin, hair and nails

keratin

organs of the integumentary system

hair, skin, nails

Sebaceous glands are found all over body except where?

palms and soles

What kind of glands are sebaceous?

oil

Two kinds of sweat glands?

eccrine and apocrine

Most numerous sweat glands and are located all over the body

eccrine

This sweat gland is found in axillary and gental regions

apocrine

Three kinds of skin cancer?

basal cell carcinoma

squamous cell carcinoma

malignant melanoma

least malignant and most common skin cancer

basal cell carcinoma

Squamous cell carcinoma affects what layer of the epidermis

spinosum

Most serious form of skin cancer

malignant melanoma

ABCDE rule- what does each letter stand for

asymmetry

border irregularity

color

diameter

evolving

First degree burns damage what layer of skin

epidermis

2nd degree burns damage what layers of skin

epidermis and upper dermis

3rd degree burns damage what layers of skin

epidermis and dermis

Is regeneration of skin possible with 3rd degree burns?

no

blue appearance of the skin or nail beds common in heart failure and severe breathing disorders)

cyanosis

red skin, can indicate embarrassment, fever, hypertension, inflammation, or allergy

erythema

yellow discoloration caused by bile in the blood as a result of liver or gallbladder disease

jaundice

pale skin, can indicate fear or anger as well as anemia, low blood pressure, or impaired blood flow

pallor

where blood has escaped the vessels and has clotted in tissue spaces (hematoma)

bruise

excessive sweating without activity

hyperhydrosis

itchy red peeling of skin between toes from a fungal infection

athlete’s foot

small, fluid-filled blisters that itch and sting; caused by herpes simplex infection

cold sore

inflammation of hair follicles and sebaceous glands

boils and carbuncles

itching, redness, and swelling of skin that leads to blistering

contact dermatitis

pink lesions around mouth and nose

impetigo

chronic condition characterized by red epidermal lesions covered by silvery, dry scales; severe cases can be disfiguring

psoriasis

A fibrous, water-repellent protein:

keratin

Cells that produce the pigment melanin are called:

melanocytes

Which layer of the epidermis are melanocytes found?

stratum basale

When body temperature get below normal, what happens so homeostasis is maintained?

A) vessels constrict

B) vessels dilate

A